User Zoom - Research Methods
Interaction Design Foundation - Best Practices for Qualitative User Research
Generative vs. Evaluative Research: What’s the Difference and Why Do We Need Each?
Guide to User Research
Research Methods at Usability.gov
Balsamiq
Proto.io
Invision
UX Magazine
Usability Geek
UX Collective
Usability.gov
UXBLOG
Smashing Magazine
UX Movement
UX Myths
UX Mastery